YAMIYA is also located in Nagoya. I didn't get the same level of access as I did at the two other shops so no back room photos. YAMIYA makes parts and works on bikes. The shop is located in the same building as the showroom, but up on the second floor.
The "white" bike is a local Nagoya favorite mod/theme
Side by side comparisons of two "wing" emblems. If you look at where the studs meet the emblem, you'll see that the YAMIYA version on the left has a reinforcing shoulder, whereas the competitor's doesn't.
YAMIYA original "un-numbered" pipes
YAMIYA original seat leather
and the link to the album:
http://s127.photobucket.com/albums/p144/wpb3pan/Z-1%20Z-2%20shops%20in%20Japan/HONDA%20SOHC%20Shop%20YAMIYA/